What are the advantages of stainless steel bellows compared to rubber hoses

Judging from the indoor gas safety accidents that have occurred in China in recent years, more than 90% of the accidents are caused by the problem of the hose connecting the gas. Due to the relatively high temperature in the kitchen and the storage of many things, the rubber hose is easy to age, fall off, wear out, and be easily bitten by rodents and insects. It needs to be checked frequently and replaced once a year. In addition, the use of rubber hose must be equipped with a pipe buckle, otherwise it will easily fall off and cause an accident. It is safer to use stainless steel bellows. Compared with rubber hoses, stainless steel bellows have the following advantages.

Anti-aging. Rubber hoses will become brittle, hardened, cracked, broken and other aging phenomena under natural conditions, while stainless steel bellows will not.

High temperature resistance. The rubber hose is not resistant to high temperature, and will soften and catch fire under the flame. The stainless steel body of the stainless steel corrugated pipe can withstand high temperature, and the flame baking will only affect the PVC protective layer covered on the outside.

Anti-rat bites. The rubber hose is not resistant to rat bites, but the teeth of ordinary animals cannot help the stainless steel pipe body of the stainless steel bellows.

Anti-shedding. The rubber hose will not fall off naturally after the clip is installed, but it cannot guarantee the safety in unexpected situations such as aging shrinkage and external force pulling. Stainless steel bellows are generally connected by threaded screws, which can withstand the pulling of an adult and prevent accidental falling off.

preservative. Rubber hoses are organic materials and are not resistant to oil, while stainless steel bellows are made of austenitic stainless steel, which can handle common corrosive liquids, and the coated PVC protective layer also has a certain anti-corrosion effect.

long life. The service life of the rubber hose is 18 months, that is, one and a half years, while the service life of the stainless steel bellows is 8 years, and the comprehensive calculation is cheaper.

Of course, the use of stainless steel bellows is not foolproof, and it can be paralyzed. The back and forth disturbance may cause metal fatigue or air leakage at the threaded interface, so the stainless steel bellows should not be too long. If it exceeds 1.5m, it needs to be fixed. After being mechanically damaged by external force, we cannot judge whether it has cracks or stress concentration with the naked eye, so it must be replaced.